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What is the empirical formula of a compound with the following percent composition: 40 percent sulfur and 60 percent oxygen?
What are the masses of CO and CO2 in the tank and what are the partial pressures of each of the three gases at 24C?
A gas-forming reaction produes 1.30 m3 of gas against a constant pressure of 178.0 kPa. Calculate the work done by the gas in joules.
the vapor pressure of water is 17.5 mmHg at 20 degrees Celcius, and 355.1 mmHg at 80 Celcius. Calculate the boiling point of water at 760 mm Hg.
The "Zebra" cell was invented in 1985 in South Africa as part of the "ZEolite Battery Research Africa" project, and is used in all-electric municipal buses and other vehicles.
Sodium atoms(Na) emit light with a wavelength(λ) of 330 nano meters when an electron moves from a state of 4 p orbital to a state of 3 s orbital now you just need to determine the energy difference between the orbitals.
A solution of I2 was standardized with ascorbic acid Using a 0..1 g sample of pure ascorbic acid, 23.52 mL of I2 were required to reach the starch end point.
If sealed glass bottle containing an organic solvent is dropped and breaks, pieces of glass may be propelled outwards because of build-up pressure that forms in the bottle. explain which is more dangerous a liquid pentane or liquid decane
An aqueous solution containing 35.9g of an unknown molecular (nonelectrolyte) compound in 159.9g of water was found to have a freezing point of -1.3 Celcius. Calculate the molar mass of the unknown compound.
Calculate the number of collisions per second of one hydrogen molecule at 24 °C and 8.00 bar. The diameter of a hydrogen molecule is 270 pm. I am having trouble with the calculations. Is there a specific way to put this in my calculator
Pure 2-methylpentane is held in a closed container at 150F. Both gas and liquid are present. What is the pressure in the container
Blood alcohol content (BAC) is often reported in weight-volume percent (w/v%). For example, a BAC of 0.08% corresponds to 0.08 g CH3CH2OH per 100 mL of blood. In Ontario, and the rest of Canada, the maximum legal BAC for fully licensed drivers is ..
calculate the heat transferred, Q when 51.0 ml of 2M NaOH solution and 50.0 ml of 2M HCl are mixed. Assume the final volume of the reaction mixture is 101.0 ml, its density is 104 g mL-1, and its heat capacity is 3.89 J g-1 deg-1
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